USD/JPY edged lower to 146.20 last week but recovered ahead of 145.84 support. Initial bias stays neutral this week first. On the upside, break of 148.51 will indicate that the pullback from 150.90 has completed, and bring retest of this high. This will also keep the whole rise from 139.87 alive. However, firm break of 145.84 support will argue that the rebound from 139.87 has completed, and turn near term outlook bearish.
In the bigger picture, price actions from 161.94 (2024 high) are seen as a corrective pattern to rise from 102.58 (2021 low). Decisive break of 61.8% retracement of 158.86 to 139.87 at 151.22 will argue that it has already completed with three waves at 139.87. Larger up trend might then be ready to resume through 161.94 high. In case the corrective pattern extends with another fall, strong support is expected from 38.2% retracement of 102.58 to 161.94 at 139.26 to bring rebound.
In the long term picture, there is no sign that up trend from 75.56 (2011 low) has completed. But then, firm break of 161.94 is needed to confirm resumption. Otherwise, more medium term range trading could still be seen.